Thread: 6.5 PRC Load Development Begins

tried out the new magnetospeed this morning and happy to now get a result for every shot unlike the optical one I had. Groups are pretty good considering it hangs on the end of the barrel. Now going to stick with 60gr and play with seating depth a little to try get the ES down.

Originally Posted by matto1234

Attachment 205755Attachment 205756 tried out the new magnetospeed this morning and happy to now get a result for every shot unlike the optical one I had. Groups are pretty good considering it hangs on the end of the barrel. Now going to stick with 60gr and play with seating depth a little to try get the ES down.

I could be wrong but I have always used charge weight to get ES down then fiddled seating depth to improve accuracy....with that in mind I would be looking at somewhere between 59.6-60 going off your results and tune accuracy with a seating depth ladder....just my 2 cents

:edit I see your test was virgin and then 2x fired brass.... 60 does look promising as long as pressure is good, but still say seating depth will tune accuracy not so much ES

Originally Posted by dannyb

I could be wrong but I have always used charge weight to get ES down then fiddled seating depth to improve accuracy....with that in mind I would be looking at somewhere between 59.6-60 going off your results and tune accuracy with a seating depth ladder....just my 2 cents

:edit I see your test was virgin and then 2x fired brass.... 60 does look promising as long as pressure is good, but still say seating depth will tune accuracy not so much ES

Oh well in that case I'll leave it alone and go head shoot some ants ��

Originally Posted by matto1234

Oh well in that case I'll leave it alone and go head shoot some ants ��

nothing wrong with tuning with seating depth....you may go from clover leafs to ragged 1 hole groups....